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Finding the Fourth Proportional to 341.39, 512.04 and 231.74

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Solution

The fourth proportional to 341.39, 512.04 and 231.74 is: 347.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.39 : 512.04 = 231.74 : x
  2. Step 2: Convert to fraction form
    341.39/512.04 = 231.74/x
  3. Step 3: Cross multiply
    341.39x = 512.04 × 231.74
  4. Step 4: Simplify right side
    341.39x = 118,660.15
  5. Step 5: Solve for x
    x = 118,660.15/341.39
  6. Step 6: Final answer
    x = 347.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.